Patent · US Expired

Inductive cooking point heating system

US5488214A · kind A · utility

17Cited by

19References

10Claims

0Family size

Assignee

E.G.O. Elektro-Gerate Blanc u. Fischer · DE

Inventors

Guenter Fettig · Karlsruhe, DE
Juergen Horn · Gondelsheim, DE
Franz Bogdanski · Oberderdingen, DE
Willi Essig · Eppelheim, DE

Key dates

Filing date	May 4, 1995
Grant date	Jan 30, 1996
Priority date	—
Expiry date	May 4, 2015

Classification

Technology area (CPC H)Electricity
CPC primaryH05B2213/07
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An inductive hot point heating system is regulated or controlled by an oscillation packet control, which uses a symmetrical pattern of complete mains half-waves. The switching takes place in the zero passage and is symmetrical in such a way that there is no d.c. voltage component in the mains. It also contains an optical temperature monitoring of the plate covering the cooking point with an infrared photosensor, which determines the temperature on the basis of its predetermined spectral range.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.